Add a simple condition variable for fill level of outgoing queue.

find_package (Threads)

add_subdirectory(prrt)

add_library(PRRT prrt/socket.c prrt/block.c prrt/block.h prrt/packet.c prrt/packet.h)

add_library(PRRT prrt/socket.c prrt/block.c prrt/block.h prrt/packet.c prrt/packet.h prrt/feedback_receiver.c prrt/feedback_receiver.h prrt/data_transmitter.c prrt/data_transmitter.h)

add_library(UTIL util/common.c util/common.h)

add_executable(sender sender.c)

#include <unistd.h>

#include "data_transmitter.h"

#include "socket.h"

void * send_data_loop(void *ptr) {

    prrt_socket *sock_ptr = ptr;

    while(1) {

        pthread_mutex_lock(&sock_ptr->is_data_available);

        while(sock_ptr->packets_count == 0) {

            pthread_cond_wait(&sock_ptr->is_data_available_cv, &sock_ptr->is_data_available);

        }

        // TODO: take a packet from the list and send it

        sock_ptr->packets_count--;

        printf("TAKING OUT (NOW: %d)\n", sock_ptr->packets_count);

        pthread_mutex_unlock(&sock_ptr->is_data_available);

        usleep(1000);

    }

}

#ifndef PRRT_DATA_TRANSMITTER_H

#define PRRT_DATA_TRANSMITTER_H

void * send_data_loop(void *ptr);

#endif //PRRT_DATA_TRANSMITTER_H

#include <string.h>

#include <unistd.h>

#include "feedback_receiver.h"

#include "../defines.h"

#include "socket.h"

void *receive_feedback_loop(void *ptr) {

    char bufin[MAX_PAYLOAD_LENGTH];

    prrt_socket *sock_ptr = ptr;

    while(1) {

        memset(bufin, 0, MAX_PAYLOAD_LENGTH);

        prrt_packet *t = prrt_recv_feedback(sock_ptr, bufin, MAX_PAYLOAD_LENGTH);

        if(t != NULL) {

            delete_packet(t);

        }

        usleep(1000);

    }

}

 No newline at end of file

#ifndef PRRT_FEEDBACK_RECEIVER_H

#define PRRT_FEEDBACK_RECEIVER_H

void *receive_feedback_loop(void *ptr);

#endif //PRRT_FEEDBACK_RECEIVER_H